From 3260aec38ebfdd9f5bc0ce8e5b8e239f30a59c1b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thorbj=C3=B8rn=20Lund=20Martsum?= <tmartsum@gmail.com>
Date: Wed, 7 Nov 2012 08:08:44 +0100
Subject: QTreeView - emit collapsed in collapseAll()

When we call call collapase we emit collapsed. Therefore it should
also be emitted on collapseAll()

This partly solves:
Task-number: QTBUG-8176

Change-Id: I20c1388fcbbb60d12debb4a0b3b0d9fed41e2563
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
---
 src/widgets/itemviews/qtreeview.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'src')

diff --git a/src/widgets/itemviews/qtreeview.cpp b/src/widgets/itemviews/qtreeview.cpp
index b21fd0abcf..df6ba708a9 100644
--- a/src/widgets/itemviews/qtreeview.cpp
+++ b/src/widgets/itemviews/qtreeview.cpp
@@ -2646,7 +2646,15 @@ void QTreeView::expandAll()
 void QTreeView::collapseAll()
 {
     Q_D(QTreeView);
+    QSet<QPersistentModelIndex> old_expandedIndexes;
+    old_expandedIndexes = d->expandedIndexes;
     d->expandedIndexes.clear();
+    QSet<QPersistentModelIndex>::const_iterator i = old_expandedIndexes.constBegin();
+    for (; i != old_expandedIndexes.constEnd(); ++i) {
+        const QPersistentModelIndex &mi = (*i);
+        if (mi.isValid() && !(mi.flags() & Qt::ItemNeverHasChildren))
+            emit collapsed(mi);
+    }
     doItemsLayout();
 }
 
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